A thick cloud of mist forms in the curve of Horseshoe Falls, one of the waterfalls that make up Niagara Falls on the border of New York and Ontario. About 90 percent of the water in the Niagara River flows over Horseshoe Falls, which amounts to about 600,000 gallons (2.3 million liters) of water per second. The waterfall is about a half-mile wide, with a brink length of 2600 feet (792 meters), and it is 167 feet (51 meters) high. Horseshoe Falls is also known as Canadian Falls, since about two-thirds of it is located in Canada. It is pictured here from the Canadian side.